Two-Way Wobble Plate Compressor
Active Publication Date: 2017-04-06
BITZER REFRIGERATION TECH CHINA
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The present invention provides a novel wobble plate compressor structure with low friction loss and improved energy conversion ratio. Compared with prior art, the wobble plate compressor of the present invention is of a compact structure with low design complexity, improving efficiency and output power while controlled cost. It is suitable for application in commercial compressors.
Problems solved by technology
The characteristic high speed sliding motion between the sliding shoe and the swash plate within the swash plate compressor may result in high friction loss and low loading capacity, and particularly, the circumstances become more serious in large volume compressors.
However, the structure reduces friction loss, but it is not compact enough, and lacks industrial applicability.
In this structure, a force from a top of the piston is directed to a bearing via a connecting rod and the wobble plate; for compressors using a single-way piston, such a wobble plate structure is conventionally usable, however, for larger volume compressors requiring a two-way piston, this structure is obviously not suitable, because there is totally no sufficient space for mounting the bearing and the connecting rod at a same position.
Thus, in this piece of prior art, it essentially requires a wobble plate stopper to stop the wobble plate from rotating, which makes the compressor structure complicated, resulting in a uneven or unbalanced, complicated manner of rotation, which in turn produces vibrations and noises.
Method used
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Embodiment Construction
[0028]With reference to particular embodiments and corresponding drawings, the structure composition and the operating principles of a two-way wobble plate compressor of the present invention will be described in detail in the following.
[0029]Generally speaking, in one aspect of the present invention, the two-way wobble plate compressor adopts a two-way piston structure, which uses a wobble plate to drive a two-way piston to reciprocate, and motion of the wobble plate is driven by a rotor fixed on a drive shaft. The present invention is particularly characterized by the manner of fitting between the wobble plate and the rotor. Bearing(s) may be fit between the wobble plate and the rotor so as to form a combined bearing unit; in other words, in addition to operating to drive the two-way piston into motion, the wobble plate may also directly serve as the outer ring of the combined bearing unit; and in addition to operating to drive the wobble plate into wobbling motion, the rotor moun...
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A two-way wobble plate compressor, comprising: a cylinder block (100); a two-way piston (200) capable of reciprocating within a cylinder bore (110) of the cylinder block (100); a drive shaft (310) driving the two-way piston (200); the two-way wobble plate compressor further includes a bearing unit, the bearing unit including a plurality of contact balls and an inner ring and an outer ring fitting with the plurality of contact balls, and the bearing unit having a central plane (P-P) angled to a perpendicular plane (I-I) of the drive shaft, wherein said drive shaft (310) is sleeved in the inner ring of the bearing unit, and is fixed to the inner ring; the outer ring of said bearing unit is coupled to the two-way piston, and when the drive shaft rotates, the two-way piston is driven via the bearing unit to perform reciprocating motion. The two-way wobble plate compressor of the present invention has a compact design, and may significantly reduce friction loss.
Description
TECHNICAL FIELD[0001]The present invention relates to a wobble plate compressor having a two-way piston.BACKGROUND ART[0002]Traditional compressors include swash plate compressors. Usually, a swash plate type compressor includes a drive shaft, a swash plate connected together with the drive shaft, and several pistons operatively connected with the swash plate. When a drive unit drives the drive shaft to rotate in a well-known manner, the swash plate will bring each piston within cylinders into reciprocating motion.[0003]For example, U.S. Pat. No. 5,009,574 discloses a traditional swash plate compressor, in the structure of which a swash plate is fixedly integrated on a drive shaft, such that the swash plate rotates together with the drive shaft. In other words, the swash plate does not rotate relative to the drive shaft. During the operation of a traditional swash plate compressor, the piston simply performs reciprocating motion. In such a structure, it further includes a sliding sh...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F04B39/00F04B27/10F16C19/18F04B39/12
CPCF04B39/0005F04B39/122F16C2360/42F16C19/184F16C2240/34F04B27/10F04B27/12F04B27/1063
InventorSHEN, DAZIWANG, JIANCHEN, YUJUN
OwnerBITZER REFRIGERATION TECH CHINA